OBD Guide

P1AAE

Phase Correlation Fault

P1AAE is an OBD-II diagnostic trouble code meaning: Phase Correlation Fault. Common causes: stretched or worn timing belt/chain, malfunction of camshaft position (cmp) sensors. Estimated repair cost: $22–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–167 (est.)

Symptoms

  • Unstable engine operation
  • Power Loss
  • Increased fuel consumption
  • Check Engine Light Is On
  • Difficulty starting the engine

Causes

  • Stretched or worn timing belt/chain
  • Malfunction of camshaft position (CMP) sensors
  • Sensor gear is dirty or damaged
  • Problems with the timing belt/chain tensioner
  • Mechanical wear of timing components

How to Fix

  1. Check the condition of the timing chain/belt and tensioner
  2. Check camshaft position sensors
  3. Check synchronization of timing marks
  4. Assess the condition of the gears
  5. If necessary, replace worn timing components

Related codes

FAQ

What does the P1AAE code mean?

P1AAE is an OBD-II diagnostic trouble code that indicates: Phase Correlation Fault

What causes a P1AAE error code?

The most common causes of P1AAE include: Stretched or worn timing belt/chain; Malfunction of camshaft position (CMP) sensors; Sensor gear is dirty or damaged; Problems with the timing belt/chain tensioner.

How do I fix a P1AAE diagnostic trouble code?

To fix P1AAE: Check the condition of the timing chain/belt and tensioner. Check camshaft position sensors. Check synchronization of timing marks. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1AAE?

Yes, but get it checked soon

How much does it cost to fix P1AAE?

The estimated repair cost for P1AAE is $22–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat